FIELD: chemistry.
SUBSTANCE: invention relates to a method of purifying lower alkanes from methanol through contact between the raw material and a catalyst which contains aluminium oxide at high temperature and pressure. The method is characterised by that the catalyst used is an aluminiuim-platinum catalyst and contact takes place at temperature of 180-400°C, pressure of 1.5-4.0 MPa, volume rate of supply of material of 0.4-4 h-1 and volume ratio of material : hydrogen equal to 1:(5-900).
EFFECT: invention increases degree of purity of lower alkanes from methanol.
3 cl, 9 ex
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